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Injection and expansion integrated device

A gas injection and set technology, applied in the field of submucosal tunnel formation devices, injection and expansion integrated devices, can solve the problems of damage to the tunnel wall, increase the risk of tunnel damage or esophagus perforation, reduce the risk, etc. Risk of perforation or bleeding, time-saving effect of surgery

Inactive Publication Date: 2016-08-17
NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A
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  • Abstract
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AI Technical Summary

Problems solved by technology

Although the endoscopic electric cutter has the characteristics of fast separation and simultaneous coagulation, the cutting current may damage the tunnel wall (mucosal layer or bottom muscular layer), increasing the risk of tunnel damage or esophageal perforation. Therefore, it is necessary to design a A therapeutic device that is easy and safe to operate, can quickly establish a submucosal tunnel, and at the same time, can greatly reduce risks

Method used

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  • Injection and expansion integrated device

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] Such as figure 1 shown.

[0015] An integrated device for injection and expansion, comprising a hollow outer tube 3 . The outer tube 3 is provided with a movably socketed inner tube 5 which can be inserted and moved in the outer tube 3 . The front end of the inner tube 5 is connected to the injection needle 1, and the liquid can be injected into the submucosal tissue. The rear end of the inner tube 5 is connected with a handle 8 . The handle 8 is hollow and communicates with the inner tube 5 . The size of the inner diameter of the handle 8 is adapted to the syringe head, so that the syringe head can be inserted from the tail end of the handle 8 to inject the liquid into the inner tube 5 . The front end of the outer tube 3 is sheathed with an expansion balloon 2 . The dilation balloon 2 is in the shape of an annular column and communicates w...

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Abstract

The invention relates to an integrated device for injection and expansion, which comprises a hollow outer tube, and a movable socketed inner tube is arranged inside the outer tube; the front end of the inner tube is connected with an injection needle, and the rear end is connected with a hollow handle; The front end of the outer tube is covered with an expansion balloon, and the rear end is connected with the cylindrical shell; the expansion balloon is connected with the gas injection pipeline inside the outer tube; the handle is movably set in the shell. The invention has reasonable design, simple structure, convenient and safe operation, can quickly establish a submucosal tunnel, saves operation time, and can greatly reduce the risk of perforation or bleeding, creating favorable conditions for improving operation quality.

Description

technical field [0001] The invention relates to a medical device, in particular to a device for forming a submucosal tunnel through injection and expansion under an endoscope, specifically an integrated device for injection and expansion. Background technique [0002] In recent years, endoscopic treatment technology has developed rapidly, and endoscopic minimally invasive surgery has become a safe and effective treatment for many gastrointestinal diseases. Endoscopic tunneling technology is widely used in endoscopic treatment, and the establishment of submucosal tunnel is the basis for the follow-up of this type of surgery, and it is often the link where complications are most likely to occur, and it is also the step that takes the longest time in surgery. It is a key step in the success of the operation. At present, the establishment of submucosal tunnel is mostly carried out alternately by submucosal injection and sharp separation with endoscopic electric knife. Although...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00A61M29/02A61M31/00
CPCA61B17/00234A61B2017/00269A61M29/00A61M31/00A61M2210/1042
Inventor 陈简汪芳裕王文才
Owner NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A
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